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    1.
    发明专利
    未知

    公开(公告)号：DE602006005012D1

    公开(公告)日：2009-03-19

    申请号：DE602006005012

    申请日：2006-02-03

    Applicant: ST MICROELECTRONICS SA

    Inventor： DRUILHE FRANCOIS ,  COFLER ANDREW ,  DUTOIT DENIS ,  HARRAND MICHEL ,  EYZAT GILLES ,  FREUND CHRISTIAN

    IPC: G11C11/406

    Abstract: The circuit has a refresh controller (48) controlled by a clock signal, and another refresh controller operating during standby periods. A local oscillator (51) receives another clock signal whose frequency is lower than that of the former signal and corresponds to clock frequency of events of global system for mobile communication network. A voltage regulator (59) supplies a memory network during the standby periods. An independent claim is also included for a mobile phone including a mobile phone circuit with a dynamic memory comprising a control circuit.

    2.
    发明专利
    未知

    公开(公告)号：DE69924781D1

    公开(公告)日：2005-05-25

    申请号：DE69924781

    申请日：1999-02-12

    Applicant: ST MICROELECTRONICS SA

    Inventor： DRUILHE FRANCOIS

    IPC: H04Q11/04

    Abstract: A method for reducing disturbing effects of coupling between a first transmission/reception device and a second transmission/reception device that are each connected to a subscriber line. According to the method, a signal received on a reception path of the first device is delayed by a delay equal to p times the transmission period. A coupling signal relating to a transmission path of a second device and the reception path of the first device is estimated based on a signal transmitted over the transmission path of the second device, and the delayed signal is ridded of the estimated coupling signal. Additionally, a device for transmitting/receiving a signal is provided. The device includes a memory coupled to a reception path for temporarily storing p symbols, a subtraction circuit, and a coupling estimation block. The coupling estimation block includes an adaptive filter with n (n>p) coupling coefficients and an estimation circuit that receives an ancillary transmission signal of another transmission/reception device. The estimation circuit and adaptive filter successively determine the n coupling coefficients as a function of the ancillary transmission signal and sum the coupling coefficients successively so as to deliver a coupling signal that is representative of estimated coupling between the reception path and the transmission path of the other device. The subtraction circuit receives an output of the memory and an output of the coupling estimation block.

    3.
    发明专利
    未知

    公开(公告)号：DE69528317D1

    公开(公告)日：2002-10-31

    申请号：DE69528317

    申请日：1995-05-23

    Applicant: ST MICROELECTRONICS SA

    Inventor： DRUILHE FRANCOIS

    IPC: H04M7/00 ,  H04Q1/44 ,  H04Q1/457

    Abstract: The circuit includes a number of processor modules (50,52) which can be easily programmed by the user. A signal memory (54) operating at the sampling frequency of the input signal contains the output signal values from the processor modules and the value of the input signal at associated addresses. A programming memory (56,58) contains information about the processor modules. A controller (64) reads the addresses stored in the programming memory and reads the values found at these addresses in the signal memory. The read values are provided to the processor modules in an order corresponding to their location in memory.

    4.
    发明专利
    未知

    公开(公告)号：FR2775150B1

    公开(公告)日：2000-05-05

    申请号：FR9801913

    申请日：1998-02-17

    Applicant: ST MICROELECTRONICS SA

    Inventor： DRUILHE FRANCOIS

    IPC: H04Q11/04 ,  H04M1/74

    Abstract: A method for reducing disturbing effects of coupling between a first transmission/reception device and a second transmission/reception device that are each connected to a subscriber line. According to the method, a signal received on a reception path of the first device is delayed by a delay equal to p times the transmission period. A coupling signal relating to a transmission path of a second device and the reception path of the first device is estimated based on a signal transmitted over the transmission path of the second device, and the delayed signal is ridded of the estimated coupling signal. Additionally, a device for transmitting/receiving a signal is provided. The device includes a memory coupled to a reception path for temporarily storing p symbols, a subtraction circuit, and a coupling estimation block. The coupling estimation block includes an adaptive filter with n (n>p) coupling coefficients and an estimation circuit that receives an ancillary transmission signal of another transmission/reception device. The estimation circuit and adaptive filter successively determine the n coupling coefficients as a function of the ancillary transmission signal and sum the coupling coefficients successively so as to deliver a coupling signal that is representative of estimated coupling between the reception path and the transmission path of the other device. The subtraction circuit receives an output of the memory and an output of the coupling estimation block.

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